/* * Replication filter * * Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD. * Copyright (c) 2016 Intel Corporation * Copyright (c) 2016 FUJITSU LIMITED * * Author: * Changlong Xie <xiecl.fnst@cn.fujitsu.com> * * This work is licensed under the terms of the GNU GPL, version 2 or later. * See the COPYING file in the top-level directory. */ #include "qemu/osdep.h" #include "qapi/error.h" #include "block/replication.h" static QLIST_HEAD(, ReplicationState) replication_states; ReplicationState *replication_new(void *opaque, ReplicationOps *ops) { ReplicationState *rs; assert(ops != NULL); rs = g_new0(ReplicationState, 1); rs->opaque = opaque; rs->ops = ops; QLIST_INSERT_HEAD(&replication_states, rs, node); return rs; } void replication_remove(ReplicationState *rs) { if (rs) { QLIST_REMOVE(rs, node); g_free(rs); } } /* * The caller of the function MUST make sure vm stopped */ void replication_start_all(ReplicationMode mode, Error **errp) { ReplicationState *rs, *next; Error *local_err = NULL; QLIST_FOREACH_SAFE(rs, &replication_states, node, next) { if (rs->ops && rs->ops->start) { rs->ops->start(rs, mode, &local_err); } if (local_err) { error_propagate(errp, local_err); return; } } } void replication_do_checkpoint_all(Error **errp) { ReplicationState *rs, *next; Error *local_err = NULL; QLIST_FOREACH_SAFE(rs, &replication_states, node, next) { if (rs->ops && rs->ops->checkpoint) { rs->ops->checkpoint(rs, &local_err); } if (local_err) { error_propagate(errp, local_err); return; } } } void replication_get_error_all(Error **errp) { ReplicationState *rs, *next; Error *local_err = NULL; QLIST_FOREACH_SAFE(rs, &replication_states, node, next) { if (rs->ops && rs->ops->get_error) { rs->ops->get_error(rs, &local_err); } if (local_err) { error_propagate(errp, local_err); return; } } } void replication_stop_all(bool failover, Error **errp) { ReplicationState *rs, *next; Error *local_err = NULL; QLIST_FOREACH_SAFE(rs, &replication_states, node, next) { if (rs->ops && rs->ops->stop) { rs->ops->stop(rs, failover, &local_err); } if (local_err) { error_propagate(errp, local_err); return; } } }